[snow43]

Code:

python2 avbtool add_hash_footer --image magisk_patched_vYoFe.img --partition_name boot --partition_size 36700160 --key snow.pem --algorithm SHA256_RSA4096
avbtool: Image size of 36700160 exceeds maximum image size of 36630528 in order to fit in a partition size of 36700160.

This is the output of avbtool signing the canary patched image

[hovatek]

Code:

python2 avbtool add_hash_footer --image magisk_patched_vYoFe.img --partition_name boot --partition_size 36700160 --key snow.pem --algorithm SHA256_RSA4096
avbtool: Image size of 36700160 exceeds maximum image size of 36630528 in order to fit in a partition size of 36700160.

This is the output of avbtool signing the canary patched image

Just unpack and repack the boot image using Android Image Kitchen. That'll reduce the size

[hovatek]

The command to generate your vbmeta is

Code:

python avbtool make_vbmeta_image --key rsa4096_vbmeta.pem --algorithm SHA256_RSA4096 --flag 2 --chain_partition boot:1:keys/snow.bin --chain_partition dtbo:5:keys/dtbo_key.bin --chain_partition recovery:2:keys/snow.bin --chain_partition socko:6:keys/socko_key.bin --chain_partition odmko:7:keys/odmko_key.bin --chain_partition vbmeta_system:3:keys/vbmeta_system_key.bin --chain_partition vbmeta_vendor:4:keys/vbmeta_vendor_key.bin --chain_partition l_modem:8:keys/l_modem_key.bin --chain_partition l_ldsp:9:keys/l_ldsp_key.bin --chain_partition l_gdsp:10:keys/l_gdsp_key.bin --chain_partition pm_sys:11:keys/pmsys_key.bin --chain_partition l_agdsp:12:keys/l_agdsp_key.bin --chain_partition l_cdsp:13:keys/l_cdsp_key.bin --padding_size 20480 --output vbmeta-sign-custom.img

For padding, use the Android vbmeta_pad.py (for 00 50 00 00) @ https://forum.hovatek.com/thread-32664.html

[snow43]

Update: Got root access
guide for extracting keys/vbmeta https://forum.hovatek.com/thread-32664.html
vbmeta creation

Code:

python2 avbtool make_vbmeta_image --key rsa4096_vbmeta.pem --algorithm SHA256_RSA4096 --flag 0 --chain_partition boot:1:keys/snow.bin --chain_partition dtbo:5:keys/dtbo_key.bin --chain_partition recovery:2:keys/snow.bin --chain_partition socko:6:keys/socko_key.bin --chain_partition odmko:7:keys/odmko_key.bin --chain_partition vbmeta_system:3:keys/vbmeta_system_key.bin --chain_partition vbmeta_vendor:4:keys/vbmeta_vendor_key.bin --chain_partition l_modem:8:keys/l_modem_key.bin --chain_partition l_ldsp:9:keys/l_ldsp_key.bin --chain_partition l_gdsp:10:keys/l_gdsp_key.bin --chain_partition pm_sys:11:keys/pmsys_key.bin --chain_partition l_agdsp:12:keys/l_agdsp_key.bin --chain_partition l_cdsp:13:keys/l_cdsp_key.bin --padding_size 20480 --output vbmeta-sign-custom.img

Use rsa4096_vbmeta.pem from this link [ Login / Register to download free]
replace snow.bin with your own private key. Execute vbmeta_pad.py.

boot file creation
extract boot.img from stock .pac file https://onedrive.live.com/?authkey=%21AH...ion=locate
patch it with magisk canary, use android kitchen tool https://forum.xda-developers.com/attachm...1590190159 to unpack and repack to decrease image size
execute

Code:

python2 avbtool add_hash_footer --image boot_magisk_patched_repack.img --partition_name boot --partition_size 36700160 --key snow.pem --algorithm SHA256_RSA4096

Reboot to fastboot with adb reboot bootloader.
flash vbmeta with

Code:

fastboot flash vbmeta vbmeta-sign-custom.img

flash boot with

Code:

fastboot flash:raw boot boot.img
fastboot reboot

you should have root by now